ORIGINAL PAPERS

The relative role of climate, land-use and spatial structure on spatial distribution pattern of species richness of large and medium mammals sympatric with giant pandas

  • LI Dan ,
  • WANG Xiaojun ,
  • ZHAO Xuzhe ,
  • ZHOU Hong ,
  • HONG Mingsheng ,
  • WEI Wei ,
  • HAN Han ,
  • TANG Junfeng ,
  • ZHANG Zejun
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  • 1 Key Laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education), China West Normal University, Nanchong 637009, China;
    2 Tangjiahe National Nature Reserve, Qingchuan 628109, China

Received date: 2020-12-01

  Online published: 2021-08-02

Abstract

Climate and land-use are recognized as the two main driving factors of biodiversity distribution patterns.However, most studies on the effects of climate and land-use have primarily focused on the species level, while their role on community diversity remains poorly understood.In this paper, combining species richness, climate and, land-use data as well as latitude and longitude data, we investigated the relative importance of climate, land-use, and spatial structure vari-ables on the species richness of large and medium mammals sympatric with giant pandas by using model comparison and variation partitioning.Our results show that(1) the number of genera and species of large and medium mammals differs in the five mountains of Sichuan Province.Minshan mountain has the highest number of genera(25) and species(28), while Liangshan mountain has the lowest number of genera(19) and species(20).The top five dominant species in the five mountains are the giant panda, takin, wild boar, Chinese goral, and Chinese serow.(2) We observed high spatial variation in species richness of large and medium mammals sympatric with giant pandas.The number of species in all 10×10 km grids ranged from 1 to 14, with an average of 6.199±3.475.(3) The full model(including all the climatic, land-use, and spatial structure variables, CLS) performed significantly better than all other six models, and the models including land-use covariates performed significantly better than those not including land-use covariates.(4) Climatic, land-use, and spatial structure variables together explained 43.0% of the variation in species richness, among which land-use variables accounted for the largest proportion, explaining 23.0% of the variation in species richness.Climatic and spatial variables explained only 6.3% and 9.3% of the variation in species richness, respectively.These findings indicated that the species richness of large and medium mammals sympatric with giant pandas was predominantly determined by land-use factors.Therefore, good forest stewardship to reduce anthropogenic threats and increase forest cover is the key to achieve comprehensive protection of large and medium mammals sympatric with giant pandas.

Cite this article

LI Dan , WANG Xiaojun , ZHAO Xuzhe , ZHOU Hong , HONG Mingsheng , WEI Wei , HAN Han , TANG Junfeng , ZHANG Zejun . The relative role of climate, land-use and spatial structure on spatial distribution pattern of species richness of large and medium mammals sympatric with giant pandas[J]. ACTA THERIOLOGICA SINICA, 2021 , 41(4) : 377 -387 . DOI: 10.16829/j.slxb.150512

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